wrote:
I am working with MARS on 75m. I am seeing some horrific QRM esp today but
generally every day and definitely need some help on rejecting the noise.

SNIPPED

A simple question.

Are you hearing QRM, [M]anmade interference, heterodynes, whistles, etc?

Or, are you hearing lots of static QRN? [N]atural noise sources?

wrote in :

Dave wrote:


Or, are you hearing lots of static QRN? [N]atural noise sources?

plain old ... usually background, noise. QRN.
but it is so loud that I cannot hear traffic thru it on USB.
This is really bad, especially on a MARS NET call.


Is it possible that these are BPL emissions from a local power line?

Or is it possibly just a bad insulator. If it goes away in the rain, a bad
insulator is the probable cause.


--
Dave Oldridge+
ICQ 1800667

wrote:
plain old ... usually background, noise. QRN.
but it is so loud that I cannot hear traffic thru it on USB.
This is really bad, especially on a MARS NET call.

Try borrowing a ClearSpeech speaker. Mine turns
some signals from unreadable to readable.
--
73, Cecil http://www.qsl.net/w5dxp